Dual track



FIG. 1 is a top perspective view of a dual track showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a top view thereof.

The rear view and the bottom view are omitted and form no part of the claimed design. 

CLAIM The ornamental design for a dual track, as shown and described. 